baber/WOPTO huggingface dataset:
Patent GB-519563-A (GB)
Title: Improvements in mechanisms for feeding washers
IPC: B65G47/14
Filed: 1938-08-24
Abstract: 519,563. Delivering washers from hoppers. JENNINGS, H. W. K. (Illinois Tool Works). Aug. 24, 1938, No. 26262/39. Divided out of 519,529. [Class 78 (i)] Washers stored in the receptacle 3 are lifted in batches by the reciprocating plate 5 and delivered to the inclined shoot 6 where they fall by gravity on to a rotating wheel 7 with pocketed periphery. Washers, not in the pockets, are relifted by the rotating roller 9 and given a second chance of finding the pockets. Washers in the pockets are delivered singly to a shoot 2 comprising two spaced side bars and a bottom plate. The shoot and wheel 7 are arranged at the same inclination which is adjustable by rocking the common supporting casting 28 about an axis 31 as .permitted by a clamping ,bolt 37 and arcuate slot 39. At the lower end of the shoot the lowermost washer may be held by spring fingers 13, Fig. 6, until forcibly removed by the bolt or screw to which it is to be applied. A vibrating hammer 15, Fig. 2, strikes the shoot 2 and prevents sticking of the washers. In a modified apparatus, the upper edge of the plate 5 is V-shaped in longitudinal section and forwardly-bevelled in cross-section and it moves laterally at right angles to the plane of the paper while it is moving vertically. This allows the wheel 7 to be dispensed with ; the roller 9 directing sufficient washers to the shoot 2. In this case the walls of the shoot 2 are formed with undercut recesses at the base to facilitate handling lock washers with warped teeth.
Patent GB-284017-A (GB)
Title: Improvements in letters, figures and like symbols for display, signs, indicators and the like
IPC: G09F7/16
Filed: 1926-10-21
Abstract: 284,017. Bluemel, F. W., and Bluemel Bros., Ltd. Oct. 21, 1926. Letters, numerals, and the like; signs, supporting and securing. - A cast metal letter, figure, or like symbol a is coated with celluloid c and provided with shanks b of ductile metal for rivetting to a base plate. The shanks may be embedded during the casting of the letter, or may be integral therewith. The letters are assembled in a frame and pressed against a template which is marked by the shanks, the template being then laid on the base as a drill guide. The letters may be painted before applying the celluloid, or coloured celluloid may be employed.
Patent GB-285938-A (GB)
Title: Method for the production of rubber goods directly from latex
IPC: C08J5/02
Filed: 1926-10-22
Abstract: 285,938. Dunlop Rubber Co., Ltd., and Twiss, D. F. Oct. 22, 1926. Moulding by dipping in latex which may be concentrated, mixed with fillers and vulcanizing materials, or may be vulcanized. The mould is coated with gelatin &c. containing a coagulant such as sodium silicofluoride, acetic acid, or a salt of calcium, magnesium, zinc, or aluminium. It may be porous or perforated and filled with a solution or jelly containing the coagulant. The bath or mould is agitated to make the deposit uniform.
Patent GB-964345-A (GB)
Title: Improvements in or relating to the microbiological generation of electricity
IPC: H01M4/36
Filed: 1961-07-20
Abstract: 964,345. Fuel cells. MAGNA PRODUCTS Inc. July 20, 1961 [Aug. 1, 1960], No. 26381/61. Drawings to Specification. Heading H1B. A fuel cell is contrived using the lining processes of organisms to effect the necessary oxidation-reduction reactions. The description, which is comprehensive, discloses the use of hydrogen and oxygen producing and/or consuming plants or animals having small biologically simple structures in electrolytes that form, or are compatable with and contain, nutrient solutions. Various pieces of apparatus including marine mechanisms are disclosed in which the biological activity utilizes sea water to power or light the mechanism. Recently dead organisms may still continue to function as living ones.
Patent GB-1353502-A (GB)
Title: Multiple sequency block copolymers of silicones and styrene
IPC: C08G77/442
Filed: 1971-04-19
Abstract: 1353502 Polystyrene polysiloxane multiple block copolymers GENERAL ELECTRIC CO 19 April 1971 [6 April 1970] 26405/71 Headings C3T and C3P Polystyrene-polysiloxane block copolymers of formula A<SP>1</SP>-(BA) x -B-A<SP>1</SP> wherein A and A<SP>1</SP> are polydiorganosiloxane segments, A being on average at least twice as long as A<SP>1</SP>, B is a polystyrene segment and x is at least one may be obtained by reaction of styrene with an organodilithium compound to give a dilithiopolystyrene, which is then reacted with a diorganosiloxane compound to give a polymer of type A<SP>1</SP>BA<SP>1</SP> having Li terminals, this in turn being linked (i) directly by reaction with acetic anhydride, (ii) via a group -SiR 2 - by reaction with a silane R 2 SiY 2 , where Y is eliminated as LiY, or (iii) by treatment with acid to give silanol end-groups, followed by reaction with a silane R 2 SiY or silanol- or hydrosiloxane-terminated polydiorganosiloxane, to give the desired block copolymer. In the examples styrene is polymerized by reaction with dilithium naphthalene and hexamethylcyclotrisiloxane is polymerized on to the product; to the product solution is added acetic anhydride (Examples 1, 3 and 4), or, after acidification, dimethyl di(isopropylamino)silane (Examples 2, 5 and 6) or diphenyl diacetoxysilane (Example 7); the polymers so formed are cast from hexane, hexane/MEK, hexane/methylene chloride or toluene to give elastic films.
Patent GB-835809-A (GB)
Title: Improvements in or relating to triarylmethane colouring materials
Inventor: FRANCIS FREDERICK GEORGE
IPC: C09B11/20
Filed: 1957-08-21
Abstract: The invention comprises colourless colour-forming triphenylmethane derivatives which are made by condensing a tri-(p-aminophenyl)-methane, wherein the phenyl groups are unsubstituted or have alkyl substituents, with Michler's hydrol - (bis - (p - dimethylaminophenyl) - methanol.  The compounds turn blue on contact with acidic substances and if a substance having oxidizing properties is also present a violet colour is developed.  The compounds are used in coatings for colourless transfer sheet materials.  Specification 817,564 is referred to.
Patent GB-482587-A (GB)
Title: Improvements in the production of savoury snacks on a large scale
IPC: A21D13/00
Filed: 1936-09-29
Abstract: A food product is produced by toasting pieces of bread, spreading the toast with a savoury mix or preparation containing raw meat, and then subjecting the spread pieces of toast to a grilling operation by heat radiated from above, so that the spread is cooked.  The savoury mix may contain a coagulable albumen ingredient in addition to the raw meat.  Apparatus for preparing the food product may consist of a casing equipped with one or more plate-shaped heating devices, e.g., an electric heater, above and beneath which carrying means, e.g., screens, for the slices of bread are interchangeably arranged, so as to enable the slices to be toasted from beneath or from both sides, and the spread grilled thereon with top heat.  The Specification which became open to inspection under Sect. 91 is the same as that which became open to inspection in connection with Specification 482,588.  The subject-matter set forth in that Specification, with the exception of that specifically abridged above, does not appear in the Specification as accepted.
Patent GB-358673-A (GB)
Title: Improvements in electromagnetic escapements for clock mechanisms
IPC: G04C5/00
Filed: 1930-09-04
Abstract: 358,673. Clocks. MICHL, R., 6, Ederova Ulica, Elektrana, Czecho-Slovakia. Sept. 4, 1930, No. 26457. Convention date, Sept. 4, 1929. [Class 139.] Escapements; winding - apparatuts, electric.-In an escapement for clock mechanism, the running down of the clock train under the drive of the mainspring or weight is checked by means of a synchronous electrical machine or an A.C. inductor, in place of a mechanical escapement. To allow, however, for current interruptions the device is combined with a mechanical escapement which is only released when the current fails. The shaft b of the clock train (which includes a mainspring or weight) carries rigid with it the hub and axis f of a wheel e between wheels c, d which are loose on shaft b ; wheel i being rigid with wheel d. Wheel i is geared through worm h to the shaft of a rotor g of the synchronous machine, t being the stator winding. The motor may be of the kind set out in Specification 191,313, [Class 139, Watches &c.]. When current is flowing, a coil u holds a brake off the disc g, and rotating balls ware raised to depress a sleeve w<1>. This rocks a lever k, counterweighted at k<11>, clockwise about its pivot k<1> so that a pawl p on this lever locks the pin m<1> on a pendulum m for an escape wheel n rigid with wheel c. This locks wheel c. With the machine running at synchronous speed the mainspring or weight drives the shaft b at a constant speed, the tendency of the mainspring to speed up shaft b being checked by the counter action of disc g and balls w. When the current fails, coil u is deenergized and the brake arrests disc g, so that the mainspring cannot speed up the disc g. At the same time balls w fall, sleeve w<1> and lever k rise, and pawl p releases the pendulum so that the mechanical escapement assumes control of the shaft b. Pawl p is prevented from clockwise rotation by pin p<1> on lever k. Where a Ferraris motor is used to keep the mainspring wound up, the coil s thereof may be tapped to supply the current for coils t, u.
Patent GB-619540-A (GB)
Title: Improvements relating to clutches
IPC: F16D43/22
Filed: 1946-09-04
Abstract: 619,540. Overload-release clutches. ARCHDALE & CO., Ltd., J., and WILSON, P. J. Sept. 4, 1946, No. 26565. [Class 80 (ii)] In an overload-release claw clutch of the kind having a pair of co-operating and coaxial parts provided on their adjacent faces with interengaging teeth having inclined or rounded contacting faces, and in which one of the parts is axially slidable and spring loaded to engage, re-engagement of the parts after slipping has occurred is prevented by a toothed ring freely rotatable on one part and coacting with the other. As shown, three circumferentially-spaced facial teeth 3 on a freely mounted member 2 engage between similarly-spaced but mutually radially displaced teeth 12, 6 on driving and driven clutch members 11, 5 respectively. The member 11 is keyed to, and the member 5 freely rotatable on, a driving spindle 1. The flanks of the teeth are inclined as shown, so that excessive torque forces the member 2 axially to the right against spring pressure until its teeth 3 disengage the teeth 6, which are shallower than the teeth 12, and engage projections 10 on the teeth 8 of a drag ring 7 freely rotatable on the member 5. The drag ring 7 then rotates with, and balks the re-engagement of, the member 2 until rotated by hand or otherwise so that the teeth 8 are again clear of the teeth 3. The torque necessary to cause disengagement is increased below a pre-determined speed by centrifugal struts 14 pivoted on an additionally spring-urged member 13 and which abut a shoulder 17 on the member 2 up to that speed.
Patent GB-794403-A (GB)
Title: Improvements in manufacture of cellular foams derived from polyisocyanates and polyalkylene ether glycols
IPC: C08G18/10
Filed: 1956-08-31
Abstract: The invention comprises a cellular foam of substantially open-cell structure produced from reacting a polyalkylene ether glycol selected from poly-1,2-propylene ether glycol, poly-1,2-butylene glycol, poly-2,3-butylene ether glycol, poly-3-chloro-1,2-propylene ether glycol, and mixtures thereof, with at least two mols. of a polyisocyanate in the presence of a tertiary amine catalyst so as to form a composition which contains about 100 parts by weight of a polyalkylene ether diisocyanate, then adding about 0.25 to 5.0 parts of a tertiary amine catalyst, about 0.06 to about 0.5 mol. per mol. of polyalkylene ether glycol of a cross-linking agent selected from di- and tri-alkanolamines, and polyhydroxy compounds having at least 3 but not more than 6 hydroxy groups, and from about 0.1 to about 3.0 parts of silicone oil, thoroughly mixing, adding 0 to about 30 parts of a polyisocyanate and 0 to about 0.5 parts of an alkali metal carbonate, and sufficient water to react with a major proportion of the isocyanate groups.  Prior to the thorough mixing there may also be added to the mixture 0 to about 0.5 mol. per mol. of polyalkylene ether diisocyanate of a difunctional compound having amino or hydroxy groups as the active groups.  As cross-linking agents di- and tri-ethanolamine, di- and tri-propanolamine, glycerol, sorbitol, 1,2,6-hexanetriol and 1-hydroxyethoxy-2 - hydroxymethyl - 2 - methylpentanol - 5 are specified.  Suitable difunctional compounds are glycol, di - or triethylene glycol, N - butylethanolamine and 1,4-butanediol.  In a typical example (6) a polypropylene ether diisocyanate (prepared by reacting poly-1,2-propylene ether glycol with tolylene diisocyanate in the presence of N-methyl morpholine) 1,2,6-hexanetriol, ethylene glycol, polydimethylsiloxane and N-methyl morpholine are mixed. Aqueous potassium carbonate solution is added and on further mixing a foamed product results.
Patent GB-867707-A (GB)
Title: An improved method of making thermal insulation material
IPC: C08J9/14
Filed: 1959-08-05
Abstract: Polyurethanes having cells filled with an inert vapour are obtained by reacting a polyester having at least three terminal hydroxyl groups with a polyisocyanate in the presence of a saturated aliphatic or cycloaliphatic fully halogenated fluorohydrocarbon at a temperature above its boiling point.  Not more than 0,25% of water (as an impurity) should be present. Lists of reactants are given, as are also cross-linkers, emulsifiers and catalysts.ALSO:Polyurethanes having cells filled with an inert vapour are obtained by reacting a polyester having at least three terminal hydroxyl groups with a polyisocyanate in the presence of a saturated aliphatic or cycloaliphatic fully halogenated fluorohydrocarbon at a temperature above its boiling point.  Not more than 0.25% of water (as an impurity) should be present. Lists of reactants are given, as are also cross linkers, emulsifiers and catalysts.
Patent GB-850658-A (GB)
Title: Improvements in or relating to high-vacuum containers
IPC: F04F9/00
Filed: 1957-08-23
Abstract: 850,658. Electric furnaces. SIEMENSSCHUCKERTWERKE A.G. Aug. 23, 1957 [Sept. 29, 1956], No. 26732/57. Addition to 805,172. Class 39(3). [Also in Groups XII and XXVIII] A vacuum furnace comprises a double-walled jacket 1 for liquid coolant in which is mounted a crucible 9 surrounded by a water-cooled induction coil 10. The furnace is evacuated by a diffusion pump 16 (see Group XXVIII). If the material to be treated is not suitable for induction heating the coil 10 may be replaced by one or more heating elements which transmit heat by radiation to the material being treated.
Patent GB-960978-A (GB)
Title: Improvements in or relating to tape feeding apparatus
IPC: G11B15/38
Filed: 1962-07-11
Abstract: 960,978. Feeding magnetic tapes. AMPEX CORPORATION. July 11, 1962 [July 18, 1961], No. 26744/62. Heading G5R. A pair of capstans 11, 11a, alternately engageable with a tape 13 to drive it in either direction are made from a porous sintered material in the form of hollow cylinders supplied by a source 27, air exuding from the surface being sufficient and its pressure sufficiently uniform to float the tape 13 clear of the surface of the unengaged capstan. Guides 12, which may be raised (dotted lines) for tape-loading, are supplied from the source with air conducted to one of a pair of manifolds 44 a solenoid-operated flap 51 venting the guide through exit means 49 or admitting air from the source to overcome the tape flotation and clamp it drivingly to the capstan. The pneumatic impedance of the capstan material allows a common supply pressure to be used for both floating and clamping. The capstans are grooved, as at 31a to improve the driving grip and its speed of engagement. In a modification, (Fig. 6, not shown) the non-operative part of the capstan may be shrouded to prevent excessive air-loss. In an alternative embodiment, providing tapebraking, the exit means 49 is taken to the inlet of the source 27 and the resulting suction used to clamp the tape against the guide-surface 41, the tape being freed but not driven with the flap 51 in a suitable intermediate position.
Patent GB-1416379-A (GB)
Title: Magnetometers
IPC: G01C17/26
Filed: 1973-06-05
Abstract: 1416379 Magnetic compasses TOKYO KEIKI KK 5 June 1973 [6 June 1972 (2)] 26796/73 Heading GIN A magnetic compass comprises a permanent north-seeking magnet 5, Fig. 1, whose field partially saturates a magnetic core 1. The core carries two windings Li and R 2  which form a bridge circuit with resistors R 1  and R 2 . A squarewave signal is applied to terminals 3 and 4; the magnet flux either adds or subtracts from the flux coils produce in the core, varying the core saturation and hence the coil inductance so that the output of the bridge at terminals 11,12 depends on the orientation of the magnet with respect to the coils. The output signal is rectified by the circuit of Fig. 5 or Fig. 8 (not shown). An operational amplifier may be added to the output of Fig. 5, Fig. 6 (not shown). The outputs of the rectifying circuits are dependant on the sine of the angle # in Fig. 1. To overcome the diode thresholds the bridge is unbalanced when # = O by choice of resistor R3 in Fig. 1 so that the diodes never receive a signal less than their threshold voltages.
Patent GB-1042313-A (GB)
Title: Means for conducting surgical post-operative investigations
IPC: A61B19/00
Filed: 1962-07-12
Abstract: In order to assist the detection of articles inadvertently left in a patient's body after an operation, each article to be used incorporates a material which is capable of being rendered radio-active so as to be readily detectable by a suitably sensitive instrument.  Forceps, needles and swabs, for example, may have a short length of cobalt wire attached to, or inset in, them and this is made radio-active prior to use.  It then emits 1/2 to 5 micro-curies of radiation and this is harmless to the patient but is readily detectable by a Geiger unit.  Other metals suggested as suitable are europiam, antimony, tantalum, manganese, zinc, iron, caesium and silver.  Alternatively metals such as boron, beryllium or lithium may be used.  These are normally non-radio-active but emit neutrons when bombarded by a radio-active source.  In this case, after the operation, the area is exposed to radiation and the presence of instruments &c. then becomes detectable.
Patent GB-831904-A (GB)
Title: Process for the preparation of crystalline dihydrostreptomycin sulphate
Inventor: HAZLEDINE FREDERICK WILLIAM
IPC: C07H15/238
Filed: 1957-08-28
Abstract: Crystalline dihydrostreptomycin sulphate is produced by adding at an elevated temperature a concentrated aqueous solution of dihydrostreptomycin sulphate to an aqueous solution of methanol containing, for example, 15 to 40% by volume of water and especially 30%.  The aqueous solution of dihydrostreptomycin contains 150,000 to 500,000 and especially 300,000 units per ml. The temperature is 40 DEG  to 70 DEG  C. and the mixture is maintained at this temperature by heating the mixture or by adding heated aqueous dihydrostreptomycin sulphate.  Preferably the aqueous methanol contains an amount of seed crystals of dihydrostreptomycin sulphate equal to about 1% of the expected total yield of crystalline dihydrostreptomycin sulphate.
Patent GB-435957-A (GB)
Title: Improvements in thermionic cathodes
IPC: H01J1/20
Filed: 1934-09-20
Abstract: 435,957. Thermionic cathodes. M.O. VALVE CO., Ltd., Electra House, Victoria Embankment, London, SMITHELLS, C. J., and WARREN, G. W., c/o General Electric Co., Wembley, Middlesex. Sept. 20, 1934, No. 27057. [Class 39 (i)] An indirectly thermionic cathode comprises, a heating element surrounded by an insulating refractory tube, a conductor in the form of a helical wire wound on the tube which carries the emitting surface, and one or more straight conducting wires or strips interposed between the insulator and the helical wire and making contact with the turns of the helix along substantially the whole length of the cathode. In the example shown, an insulating tube 1 of alumina surrounds a tungsten or molybdenum heater wire 2. A helical nickel wire 3 forming the cathode is wound on the insulator 1 with the interposition of a nickel wire 4 of larger diameter which makes contact with all the turns of the helix and prevents the occurrence of potential differences therein. The wire 4 may be used for connection to the cathode lead. Metallic strip may replace the wire, but should not occupy more than a quarter of the circumference. To improve the symmetry of the cathode, a number of wires or strips may be spaced equally around the cathode. Specifications 281,262, [Class 39 (i)], and 379,334 are referred to.
Patent GB-1073922-A (GB)
Title: Catalyzed electrode
IPC: H01M4/86
Filed: 1964-07-01
Abstract: Porous electrodes of metal or activated carbon for fuel cell electrodes e.g. hydrogen-oxygen fuel cells are catalyzed by treating with a solution containing a heavy metal salt of at least one of Fe, Co, Ni, Mn, Cr, Cu, Ag, Au, Pt, V, Ti, U, Th and rare earths, plus an Al salt and a Ru salt and heated to 700 DEG  -900 DEG C. in an oxidizing or reducing atmosphere.  The heavy metal and Al salts are preferably nitrates or nitrites although chlorides, chromates, oxalates, acetates and formates may be used.  The Ru salts may be the trichloride, nitrosohydroxide, or nitrate.  The final concentration of the deposited catalyst is 0.05-0.2% by weight of the heavy metal - Al catalyst with 0.25-8mgms. of Ru per sq. cm. of electrode surface. The treated electrode may be wet proofed with a 3% solution of paraffin in ether.ALSO:Porous electrodes of metal or activated carbon for fuel cell electrodes e.g. hydrogen oxygen fuel cells are catalysed by treating with a solution containing a heavy metal salt of at least one of Fe, Co, Ni, Mn, Cr, Cu, Ag, Au, Pt, V, Ti, U, Th and rare earths, plus an Al salt and a Ru salt and heated to 700 DEG -900 DEG C in an oxidising or reducing atmosphere.  The heavy metal and Al salts are preferably nitrates or nitrites although chlorides, chromates, oxalates, acetates and formates may be used.  The Ru salts may be the trichloride nitrosohydroxide, or nitrate.  The final concentration of the deposited catalyst is 0.05-0.2% by weight of the heavy metal - Al catalyst with 0.25-8mgms. of Ru per sq. cm. of electrode surface.  The treated electrode may be wet proofed with a 3% solution of paraffin in ether.
Patent GB-290896-A (GB)
Title: Improvements in and connected with means of extinguishing fires in ships' holds, bunkers and other confined spaces
IPC: A62C3/10
Filed: 1927-10-13
Abstract: 290,896. Drugan, J. Oct. 13, 1927. Fire-extinguishing by steam; sprinkling apparatus, non-automatic.-In an arrangement for extinguishing fires in ships' holds, &c., steam from a boiler A passes under control of valves K to main distributing pipes B, headers C, and supply pipes D arranged beneath the holds or bunkers. It escapes into the holds, &c., by branches J, Fig. 3, holes H in the floor plates, and perforated spray plates G. Condensed steam passes away to the bilges through draining apertures provided in the floor plates. Reference has been directed by the Comptroller to Specifications 2222/83, 806/86, 22546/96, 2243/09, 12307/12 and 146,298.